k8s 合并多个 kube config 文件

2024-06-29

先备份已有的 kubeconfig 文件

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cp ~/.kube/config1 ~/.kube/config.bak1
cp ~/.kube/config2 ~/.kube/config.bak2

通过此环境变量来指定多个 kubeconfig

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export KUBECONFIG=~/.kube/config1:~/.kube/config2

合并 kubeconfig 文件

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kubectl config view --flatten > ~/.kube/config.new

测试 kubeconfig 文件，展示所有的 context

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KUBECONFIG=~/.kube/config.new  kubectl config get-contexts
CURRENT   NAME                              CLUSTER          AUTHINFO           NAMESPACE
*         kubernetes-admin@local1           local1           kubernetes-admin
          kubernetes-admin@local2           local2           kubernetes-admin

把新的 kubeconfig 文件设置为默认的 kubeconfig 文件

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mv ~/.kube/config.new ~/.kube/config
export KUBECONFIG=~/.kube/config

切换到新的 context

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kubectl config use-context kubernetes-admin@local2

kubectl config use-context kubernetes-admin@local1

#K8s